961602969599 has 4 divisors (see below), whose sum is σ = 963103130880. Its totient is φ = 960102808320.

The previous prime is 961602969577. The next prime is 961602969611. The reversal of 961602969599 is 995969206169.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 961602969599 - 2¹² = 961602965503 is a prime.

It is a super-2 number, since 2×961602969599² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961602969199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750079679 + ... + 750080960.

It is an arithmetic number, because the mean of its divisors is an integer number (240775782720).

Almost surely, 2^961602969599 is an apocalyptic number.

961602969599 is a deficient number, since it is larger than the sum of its proper divisors (1500161281).

961602969599 is a wasteful number, since it uses less digits than its factorization.

961602969599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500161280.

The product of its (nonzero) digits is 127545840, while the sum is 71.

The spelling of 961602969599 in words is "nine hundred sixty-one billion, six hundred two million, nine hundred sixty-nine thousand, five hundred ninety-nine".